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Hydrochloric Acid Solution Impeller Test

DateCategories engineeringCategories3

Case Study: Hydrochloric Acid Solution Impeller Test

Summary 

Oribi set out to determine degradation expectations when using highly destructive fluids and solids and has impellers currently under extreme testing conditions.

Advanced Composites Advantage 

Advanced composites consist of a polymer matrix reinforced with high-strength continuous fibers. The fibers are custom orientated to maximize strength and stiffness required by the impeller design, while minimizing weight and unwanted flex.

  • Vanes are thinner and have ultra-smooth surfaces enabling higher hydraulic efficiency
  • ACM’s are up to 10x stronger than other materials and effective for pumping abrasive solids within liquid
  • ACM’s are highly corrosion resistant and ideal for the most corrosive and flammable fluids
  • ACM’s are anti-static, non-sparking and thermally stable from -50°F to 400°F

 Testing Conditions 

  • Design: 5-vane open impeller for 3 x 2 pump
  • Hub: Fiberglass / PEEK, threaded to shaft
  • Size: 5 ¾” diameter (8” pump)
  • Material: Fiberglass / PEEK
  • Solution: 37% Hydrochloric Acid
  • Solids: 10% of total solution
  • Temp: 190° F
  • Duration: 19+ months, 24/7 operation
  • Head: 70 ft.
  • Flow: 400 gal/min
  • Motor: 1750 RPM with 5HP motor

Results 

Continuous testing has shown no impeller degradation and is fully functioning as intended. Vanes show no indication of corrosion, wear, chipping, nor any other deformity. Impeller base shows no wear and is locking vanes in place as designed.

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